CN104990304B - Multi-split system - Google Patents
Multi-split system Download PDFInfo
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- CN104990304B CN104990304B CN201510359697.6A CN201510359697A CN104990304B CN 104990304 B CN104990304 B CN 104990304B CN 201510359697 A CN201510359697 A CN 201510359697A CN 104990304 B CN104990304 B CN 104990304B
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- reversal valve
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- valve
- orifice
- reversal
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- 238000010438 heat treatment Methods 0.000 claims abstract description 44
- 238000009423 ventilation Methods 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 2
- 239000003507 refrigerant Substances 0.000 description 33
- 230000000694 effects Effects 0.000 description 15
- 230000005494 condensation Effects 0.000 description 14
- 238000009833 condensation Methods 0.000 description 14
- 238000001704 evaporation Methods 0.000 description 13
- 230000008020 evaporation Effects 0.000 description 13
- 238000005057 refrigeration Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 12
- 230000007246 mechanism Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a multi-split system. The multi-split system comprises an outdoor unit (1) and a plurality of indoor units connected with the outdoor unit (1) through third reversing valves (2), the working states of the indoor units are controlled independently, and the multi-split system is provided with a first working mode that at least two indoor units are in different working states, a second working mode that the indoor units are in a heating state simultaneously and a third working mode that the indoor units are in a cooling state simultaneously. According to the multi-online system disclosed by the invention, the switching of any mode of the multiple internal machines can be met, the energy utilization rate is improved, and the use requirements of users can be conveniently met.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of multiple on-line system.
Background technology
At present, in existing one drag two multiple on-line system, two interior machines can only be realized while freeze or heat simultaneously, no
It can be realized on the basis of existing capability in a circulatory system, the hot need of any one interior mechanism cold, another interior mechanism
Ask, therefore, it is difficult to meet the needs of user is to cold and heat so that the utilization rate of the energy is relatively low.
The content of the invention
A kind of multiple on-line system is provided in the embodiment of the present invention, the switching of more interior machine arbitrary patterns is disclosure satisfy that, both carried
High energy utilization rate, and can enough easily meet the use needs of user.
To achieve the above object, the embodiment of the present invention provides a kind of multiple on-line system, including an outdoor unit and it is multiple with
The indoor set that outdoor unit is connected by the 3rd reversal valve, the mutual independent control of working condition of each indoor set, multiple on-line system tool
There are the first mode of operation, indoor set while the second work in heating state that at least two indoor sets are in different working condition
Operation mode and indoor set are in the 3rd mode of operation of refrigerating state simultaneously.
Indoor set includes the first indoor set and the second indoor set, the first indoor set include the first reversal valve, First Heat Exchanger,
First expansion valve and the first check valve, the first interface of the first reversal valve are connected to the second interface of the 3rd reversal valve, and first changes
First Heat Exchanger is connected to the second interface of valve, the 3rd interface of the first reversal valve is connected to the first expansion valve, and first is unidirectional
Valve is in parallel with the first expansion valve, and the direction of threeth interface of first check valve along First Heat Exchanger to the first reversal valve is unidirectionally led
It is logical；Second indoor set includes the second reversal valve, the second heat exchanger, the second expansion valve and the second check valve, and the of the second reversal valve
One interface is connected to the 3rd interface of the 3rd reversal valve, and the second interface of the second reversal valve is connected to the second heat exchanger, and second changes
The second expansion valve is connected to the 3rd interface of valve, the second check valve is in parallel with the second expansion valve, and the second check valve changes along second
For hot device to the direction one-way conduction of the 3rd interface of the second reversal valve, the 4th interface of the second reversal valve is connected to the first reversal valve
The 4th interface.
Outdoor unit includes the 3rd heat exchanger, the 3rd expansion valve and the 3rd check valve, and the 3rd expansion valve is arranged on the 3rd heat exchange
Between the first interface of device and the 3rd reversal valve, the 3rd check valve is in parallel with the 3rd expansion valve, and the 3rd check valve exchanges heat along the 3rd
Device to the first interface of the 3rd reversal valve direction one-way conduction.
Outdoor unit also includes compressor, gas-liquid separator, fluid reservoir and the 4th reversal valve, the first interface of the 4th reversal valve
It is connected with the outlet of compressor, the second interface of the 4th reversal valve is connected with the 4th interface of the 3rd reversal valve, the 4th reversal valve
The 3rd interface be connected with the 3rd heat exchanger, the 4th interface of the 4th reversal valve is connected with fluid reservoir.
Multiple on-line system also includes second that the first blower fan, corresponding second heat exchanger that corresponding First Heat Exchanger is set are set
The 3rd blower fan that blower fan and corresponding 3rd heat exchanger are set.
When multiple on-line system is in the first mode of operation, the first indoor set is in refrigerating state, and the first of the first reversal valve
3rd orifice of interface and the first reversal valve, the second interface of the first reversal valve and the 4th interface of the first reversal valve connect
Logical, the second indoor set is in shutdown or ventilation state, the first interface of the 4th reversal valve and the 3rd interface of the 4th reversal valve
Connection, the second interface of the 4th reversal valve and the 4th orifice of the 4th reversal valve, the first interface of the 3rd reversal valve and the
The second interface connection of three reversal valves, the 3rd interface of the 3rd reversal valve and the 4th orifice of the 3rd reversal valve, the 3rd is swollen
Swollen valve is closed.
When indoor set is in the first mode of operation, the first indoor set is in heating state, the first interface of the first reversal valve
With the 3rd orifice of the first reversal valve, the second interface of the first reversal valve and the 4th orifice of the first reversal valve, the
Two indoor sets are in shutdown or ventilation state, the first interface of the 4th reversal valve connect with the second interface of the 4th reversal valve,
3rd interface of the 4th reversal valve and the 4th orifice of the 4th reversal valve, the first interface of the 3rd reversal valve and the 3rd commutation
The second interface connection of valve, the 3rd interface of the 3rd reversal valve and the 4th orifice of the 3rd reversal valve, the first expansion valve close
Close.
When indoor set is in the first mode of operation, the first indoor set is at shutdown or ventilation state, the second indoor set
In refrigerating state, the 3rd orifice of the first interface of the second reversal valve and the second reversal valve, the second reversal valve second
4th orifice of interface and the second reversal valve, the first interface of the 4th reversal valve and the 3rd interface of the 4th reversal valve connect
It is logical, the second interface of the 4th reversal valve and the 4th orifice of the 4th reversal valve, the first interface and the 3rd of the 3rd reversal valve
3rd orifice of reversal valve, the second interface of the 3rd reversal valve and the 4th orifice of the 3rd reversal valve, the 3rd expansion
Valve is closed.
When indoor set is in the first mode of operation, the first indoor set is at shutdown or ventilation state, the second indoor set
In heating state, the first interface of the second reversal valve connects with the second interface of the second reversal valve, and the 3rd of the second reversal valve connects
4th orifice of mouth and the second reversal valve, the first interface of the 4th reversal valve connect with the second interface of the 4th reversal valve,
3rd interface of the 4th reversal valve and the 4th orifice of the 4th reversal valve, the first interface of the 3rd reversal valve and the 3rd commutation
3rd orifice of valve, the second interface of the 3rd reversal valve and the 4th orifice of the 3rd reversal valve, the second expansion valve close
Close.
When indoor set is in three mode of operations, the first indoor set and the second indoor set are in refrigerating state, and first changes
3rd orifice of first interface and the first reversal valve to valve, the of the second interface of the first reversal valve and the first reversal valve
3rd orifice of four orifices, the first interface of the second reversal valve and the second reversal valve, the second reversal valve second
4th orifice of interface and the second reversal valve, the first interface of the 4th reversal valve and the 3rd interface of the 4th reversal valve connect
It is logical, the second interface of the 4th reversal valve and the 4th orifice of the 4th reversal valve, the first interface and the 3rd of the 3rd reversal valve
3rd orifice of reversal valve, the second interface of the 3rd reversal valve and the 4th orifice of the 3rd reversal valve, the first expansion
Valve is closed, and the 3rd expansion valve is closed.
When indoor set is in the second mode of operation, the first indoor set and the second indoor set are in heating state, and first changes
Connected to the first interface of valve with the second interface of the first reversal valve, the 3rd interface of the first reversal valve and the of the first reversal valve
3rd orifice of four orifices, the first interface of the second reversal valve and the second reversal valve, the second reversal valve second
4th orifice of interface and the second reversal valve, the first interface of the 4th reversal valve and the second interface of the 4th reversal valve connect
It is logical, the 3rd interface of the 4th reversal valve and the 4th orifice of the 4th reversal valve, the first interface and the 3rd of the 3rd reversal valve
3rd orifice of reversal valve, the second interface of the 3rd reversal valve and the 4th orifice of the 3rd reversal valve, the first expansion
Valve is closed, and the second expansion valve is closed.
When indoor set is in the first mode of operation, the first indoor set is in refrigerating state, the first interface of the first reversal valve
Connected with the second interface of the first reversal valve, the 3rd interface of the first reversal valve and the 4th orifice of the first reversal valve, the
Two indoor sets are in heating state, and the first interface of the second reversal valve connects with the second interface of the second reversal valve, second change
To the 3rd interface of valve and the 4th orifice of the second reversal valve, the cold phase of the heat of the first indoor set and the second indoor set
When, the first interface of the 4th reversal valve and the 3rd orifice of the 4th reversal valve, the second interface and the 4th of the 4th reversal valve
4th orifice of reversal valve, the first interface of the 3rd reversal valve and the 3rd orifice of the 3rd reversal valve, the 3rd commutation
The second interface of valve and the 4th orifice of the 3rd reversal valve, the second expansion valve are closed, and the 3rd expansion valve is closed, the 3rd blower fan
Close.
Indoor set is in the first mode of operation and when institute's calorific requirement is suitable with institute chilling requirement, and the first indoor set is in heating shape
State, the first interface of the first reversal valve connect with the second interface of the first reversal valve, the 3rd interface of the first reversal valve and first
4th orifice of reversal valve, the second indoor set are in refrigerating state, the first interface of the second reversal valve and the second reversal valve
Second interface connection, the 3rd interface of the second reversal valve and the 4th orifice of the second reversal valve, the 4th reversal valve
3rd orifice of first interface and the 4th reversal valve, the second interface of the 4th reversal valve and the 4th interface of the 4th reversal valve
Connection, the first interface of the 3rd reversal valve and the 3rd orifice of the 3rd reversal valve, the second interface of the 3rd reversal valve and the
4th orifice of three reversal valves, the first expansion valve are closed, and the 3rd expansion valve is closed, and the 3rd blower fan is closed.
Indoor set is in the first mode of operation and when institute's calorific requirement is less than institute's chilling requirement, and the first indoor set is in heating shape
State, the first interface of the first reversal valve connect with the second interface of the first reversal valve, the 3rd interface of the first reversal valve and first
4th orifice of reversal valve, the second indoor set are in refrigerating state, the first interface of the second reversal valve and the second reversal valve
Second interface connection, the 3rd interface of the second reversal valve and the 4th orifice of the second reversal valve, the 4th reversal valve
3rd orifice of first interface and the 4th reversal valve, the second interface of the 4th reversal valve and the 4th interface of the 4th reversal valve
Connection, the first interface of the 3rd reversal valve connects with the second interface of the 3rd reversal valve, the 3rd interface of the 3rd reversal valve and the
4th orifice of three reversal valves, the first expansion valve are closed, and the 3rd expansion valve is closed.
Indoor set is in the first mode of operation and when institute's calorific requirement is less than institute's chilling requirement, and the first indoor set is in refrigeration shape
State, the first interface of the first reversal valve connect with the second interface of the first reversal valve, the 3rd interface of the first reversal valve and first
4th orifice of reversal valve, the second indoor set are in heating state, the first interface of the second reversal valve and the second reversal valve
Second interface connection, the 3rd interface of the second reversal valve and the 4th orifice of the second reversal valve, the 4th reversal valve
3rd orifice of first interface and the 4th reversal valve, the second interface of the 4th reversal valve and the 4th interface of the 4th reversal valve
Connection, the first interface of the 3rd reversal valve and the 3rd orifice of the 3rd reversal valve, the second interface of the 3rd reversal valve and the
4th orifice of three reversal valves, the second expansion valve are closed, and the 3rd expansion valve is closed.
Indoor set is in the first mode of operation and when institute's calorific requirement is more than institute's chilling requirement, and the first indoor set is in heating shape
State, the first interface of the first reversal valve connect with the second interface of the first reversal valve, the 3rd interface of the first reversal valve and first
4th orifice of reversal valve, the second indoor set are in refrigerating state, the first interface of the second reversal valve and the second reversal valve
Second interface connection, the 3rd interface of the second reversal valve and the 4th orifice of the second reversal valve, the 4th reversal valve
First interface connects with the second interface of the 4th reversal valve, the 3rd interface of the 4th reversal valve and the 4th interface of the 4th reversal valve
Connection, the first interface of the 3rd reversal valve and the 3rd orifice of the 3rd reversal valve, the second interface of the 3rd reversal valve and the
4th orifice of three reversal valves, the first expansion valve are closed.
Indoor set is in the first mode of operation and when institute's calorific requirement is more than institute's chilling requirement, and the first indoor set is in refrigeration shape
State, the first interface of the first reversal valve connect with the second interface of the first reversal valve, the 3rd interface of the first reversal valve and first
4th orifice of reversal valve, the second indoor set are in heating state, the first interface of the second reversal valve and the second reversal valve
Second interface connection, the 3rd interface of the second reversal valve and the 4th orifice of the second reversal valve, the 4th reversal valve
First interface connects with the second interface of the 4th reversal valve, the 3rd interface of the 4th reversal valve and the 4th interface of the 4th reversal valve
Connection, the first interface of the 3rd reversal valve connects with the second interface of the 3rd reversal valve, the 3rd interface of the 3rd reversal valve and the
4th orifice of three reversal valves, the second expansion valve are closed.
Apply the technical scheme of the present invention, multiple on-line system includes an outdoor unit and multiple changed with outdoor unit by the 3rd
The indoor set connected to valve, the mutual independent control of working condition of each indoor set, multiple on-line system have at least two indoor sets
The first mode of operation, indoor set in different working condition are in the second mode of operation and indoor set of heating state simultaneously
The 3rd mode of operation in refrigerating state simultaneously.When using the multiple on-line system, it is possible to achieve more interior machine arbitrary patterns
Switching so that an interior mechanism cold can be realized in a multiple on-line system, while the mode of operation of an interior mechanism heat, energy
Enough meet requirement of the user for cold and heat, energy utilization rate is higher, can preferably meet the use demand of user.
Brief description of the drawings
Fig. 1 is the fundamental diagram of the multiple on-line system of first embodiment of the invention；
Fig. 2 is the fundamental diagram of the multiple on-line system of second embodiment of the invention；
Fig. 3 is the fundamental diagram of the multiple on-line system of third embodiment of the invention；
Fig. 4 is the fundamental diagram of the multiple on-line system of fourth embodiment of the invention；
Fig. 5 is the fundamental diagram of the multiple on-line system of fifth embodiment of the invention；
Fig. 6 is the fundamental diagram of the multiple on-line system of sixth embodiment of the invention；
Fig. 7 is the fundamental diagram of the multiple on-line system of seventh embodiment of the invention；
Fig. 8 is the fundamental diagram of the multiple on-line system of eighth embodiment of the invention；
Fig. 9 is the fundamental diagram of the multiple on-line system of ninth embodiment of the invention；
Figure 10 is the fundamental diagram of the multiple on-line system of tenth embodiment of the invention；
Figure 11 is the fundamental diagram of the multiple on-line system of eleventh embodiment of the invention；
Figure 12 is the fundamental diagram of the multiple on-line system of twelveth embodiment of the invention.
Description of reference numerals：1st, outdoor unit；2nd, the 3rd reversal valve；3rd, the first indoor set；4th, the second indoor set；5th, first change
To valve；6th, First Heat Exchanger；7th, the first expansion valve；8th, the first check valve；9th, the second reversal valve；10th, the second heat exchanger；11st,
Two expansion valves；12nd, the second check valve；13rd, the 3rd heat exchanger；14th, the 3rd expansion valve；15th, the 3rd check valve；16th, compressor；
17th, gas-liquid separator；18th, fluid reservoir；19th, the 4th reversal valve；20th, the first blower fan；21st, the second blower fan；22nd, the 3rd blower fan.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but not as the limit to the present invention
It is fixed.
Referring to shown in Fig. 1 to Figure 12, according to an embodiment of the invention, multiple on-line system includes an outdoor unit 1 and multiple
The indoor set being connected with outdoor unit 1 by the 3rd reversal valve 2, the mutual independent control of working condition of each indoor set, multi-connected machine system
System be in the first mode of operation of different working condition, indoor set with least two indoor sets and is in the of heating state simultaneously
Two mode of operations and indoor set are in the 3rd mode of operation of refrigerating state simultaneously.Such as the multiple on-line system can include two
Platform indoor set, when now two indoor sets are in the first mode of operation, heated condition can be in one, one in refrigeration shape
State, or one in heating or refrigerating state, another in shutdown or ventilation state.Certainly, multi-link system
The indoor set of three and the above can also be included, but its basic control model is identical.
When using the multiple on-line system, it is possible to achieve the switching of more interior machine arbitrary patterns so that a multi-connected machine system
Can realize mechanism cold in part in system, at the same in part mechanism heat mode of operation, or more interior machines freeze simultaneously
Mode of operation, or the mode of operation that more interior machines heat simultaneously, it is possible to achieve the variation of air conditioner control model, therefore
Requirement of the user for cold and heat is disclosure satisfy that, energy utilization rate is higher, can preferably meet the use demand of user.
Indoor set includes the first indoor set 3 and the second indoor set 4, and the first indoor set 3 changes including the first reversal valve 5, first
Hot device 6, the first expansion valve 7 and the first check valve 8, the first interface of the first reversal valve 5 are connected to the second of the 3rd reversal valve 2 and connect
Mouthful, the second interface of the first reversal valve 5 is connected to First Heat Exchanger 6, and the 3rd interface of the first reversal valve 5 is connected to the first expansion
Valve 7, the first check valve 8 is in parallel with the first expansion valve 7, and the first check valve 8 is along the 3rd of the reversal valve of First Heat Exchanger 6 to the first 5
The direction one-way conduction of interface；Second indoor set 4 includes the second reversal valve 9, the second heat exchanger 10, the second expansion valve 11 and second
Check valve 12, the first interface of the second reversal valve 9 are connected to the 3rd interface of the 3rd reversal valve 2, and the second of the second reversal valve 9 connects
Mouth is connected to the second heat exchanger 10, and the 3rd interface of the second reversal valve 9 is connected to the second expansion valve 11, the second check valve 12 and the
Two expansion valve 11 is in parallel, and the direction of threeth interface of second check valve 12 along the reversal valve 9 of the second heat exchanger 10 to the second is unidirectionally led
Logical, the 4th interface of the second reversal valve 9 is connected to the 4th interface of the first reversal valve 5.
When multiple on-line system works, by the working condition for adjusting the first reversal valve 5, it is possible to achieve to the first indoor set
The adjustment of 3 working condition, and can realize the adjustment of the working condition to the second indoor set 4 by adjusting the second reversal valve 9.
, can be by adjusting the working condition of the first reversal valve 5, the second reversal valve 9 when needing to be controlled multiple on-line system
The working condition of working condition and the 3rd reversal valve 2, these three reversal valves are made to cooperate, so as to realize the first indoor set 3
With the second indoor set 4 simultaneously in heating state, the first indoor set 3 and the second indoor set 4 simultaneously in refrigerating state, the first Room
Interior machine 3 heats either refrigeration, and the second indoor set 4 is shut down or blown simultaneously and the second indoor set 4 is heated or freezed simultaneously
First indoor set 3 such as shuts down or blown at the adjustment of mode of operation so that the Working mould of the first indoor set 3 and the second indoor set 4
Formula conversion will not interfere with, and adjustment is simple and convenient, is easy to implement independent control, control cost can also be effectively controlled.
Expansion valve and check valve are in parallel, can be according to heating capacity or refrigeration when expansion valve and check valve are opened simultaneously
Amount is needed to be adjusted to the working condition of expansion valve, and when being throttled without expansion valve, by check valve to system
Cryogen carries out normally, ensures that refrigerant has enough flows；, can be by expansion valve to refrigerant when check valve ends
Effectively throttling is realized, is ensured to the restriction effect in refrigerant circulating process.Therefore, the working condition switching of indoor set is being carried out
When, it can effectively ensure that under arbitrary operational state, indoor set normally can effectively work so that more indoor sets can
Run simultaneously with different working condition, improve variation and the differentiation of indoor set working condition, widened multiple on-line system
The mode of operation that can be realized.
Outdoor unit 1 includes the 3rd heat exchanger 13, the 3rd expansion valve 14 and the 3rd check valve 15, and the 3rd expansion valve 14 is arranged on
Between 3rd heat exchanger 13 and the first interface of the 3rd reversal valve 2, the 3rd check valve 15 is in parallel with the 3rd expansion valve 14, and the 3rd is single
The direction one-way conduction of first interface to valve 15 along the reversal valve 2 of the 3rd heat exchanger 13 to the 3rd.
3rd check valve 15 is in parallel with the 3rd expansion valve 14, and the 3rd reversal valve is flowed to from the 3rd heat exchanger 13 in refrigerant
When 2, according to the difference of the mode of operation to be realized, the 3rd expansion valve 14 can be opened or closed, when the 3rd expansion valve 14
During closing, refrigerant directly flows to the 3rd reversal valve 2 without throttling from the 3rd check valve 15, because pusher side is also provided with indoors
Have the throttling arrangements such as expansion valve, therefore the energy loss that refrigerant flows in outdoor unit side can be reduced, and can avoid by
Refrigerant is throttled in the 3rd expansion valve 14, to adverse effect caused by follow-up indoor set work.
When the 3rd expansion valve 14 is opened, now refrigerant flows to through the 3rd expansion valve 14 and the 3rd check valve 15 simultaneously
3rd reversal valve 2, the restriction effect of refrigerant can be effectively improved, lift the service behaviour of multiple on-line system.
When refrigerant flows to three heat exchangers 13 from the 3rd reversal valve 2, now the 3rd check valve 15 ends, refrigerant
The 3rd heat exchanger 13 is flowed to through the 3rd expansion valve 14, the degree of superheat of refrigerant can be effectively ensured, lift multiple on-line system
Service behaviour.
Outdoor unit 1 also includes compressor 16, gas-liquid separator 17, the reversal valve 19 of fluid reservoir 18 and the 4th, the 4th reversal valve
19 first interface is connected with the outlet of compressor 16, and the second interface of the 4th reversal valve 19 connects with the 4th of the 3rd reversal valve 2
Mouth connection, the 3rd interface of the 4th reversal valve 19 are connected with the 3rd heat exchanger 13, the 4th interface and liquid storage of the 4th reversal valve 19
Tank 18 connects.
4th reversal valve 19 can switch over to the flow direction of refrigerant, so as to realize under multiple on-line system different mode
Work adjustment.
Multiple on-line system also includes the first blower fan 20, corresponding second heat exchanger 10 that corresponding First Heat Exchanger 6 is set and set
The second blower fan 21 and the 3rd blower fan 22 that sets of corresponding 3rd heat exchanger 13.Three motors can improve corresponding heat exchanger
Heat exchange property.
With reference to shown in Figure 1, according to the first embodiment of the present invention, when multiple on-line system is in the first mode of operation,
First indoor set 3 is in the 3rd orifice of refrigerating state, the first interface of the first reversal valve 5 and the first reversal valve 5, and first
The second interface of reversal valve 5 and the 4th orifice of the first reversal valve 5, the second indoor set 4 are in shutdown or ventilation state,
The first interface of 4th reversal valve 19 and the 3rd orifice of the 4th reversal valve 19, the second interface of the 4th reversal valve 19 and the
4th orifice of four reversal valves 19, the first interface of the 3rd reversal valve 2 connect with the second interface of the 3rd reversal valve 2, the
3rd interface of three reversal valves 2 and the 4th orifice of the 3rd reversal valve 2, the 3rd expansion valve 14 are closed.
In the present embodiment, because the second indoor set 4 is in shutdown either ventilation state, thus the first indoor set 3 with
Outdoor unit 1 forms refrigeration system.Refrigerant changes after the outflow of compressor 16 by the first interface and the 4th of the 4th reversal valve 19
The 3rd heat exchanger 13 is entered after to the 3rd interface of valve 19 to be exchanged heat, what the 3rd heat exchanger 13 now rose is condensation
Effect, therefore need not be throttled from the refrigerant of the 3rd heat exchanger 13 outflow through the 3rd expansion valve 14, but directly through the 3rd
Check valve 15 flows to the first interface of the 3rd reversal valve 2, and then flowing to first via the second interface of the 3rd reversal valve 2 changes
To the first interface of valve 5, and the 3rd interface outflow through the first reversal valve 5, now because the first check valve 8 ends, refrigerant
After the throttling cooling of the first expansion valve 7, enter in First Heat Exchanger 6, now First Heat Exchanger 6 plays evaporation, inhales
Indoor temperature is received, interior is cooled.
Second interface and fourth interface of the refrigerant through the first reversal valve 5 flow to the second indoor set 4 afterwards, due to second
Indoor set 4 is in shutdown or ventilation state, refrigerant directly flow after the 4th interface and first interface of the second reversal valve 9
To the 3rd interface of the 3rd reversal valve 2, the 4th interface then through the 3rd reversal valve 2 flows to the second of the 4th reversal valve 19 and connect
Mouthful, after the 4th interface through the 4th reversal valve 19, fluid reservoir 18, flow back into compressor 16 after gas-liquid separator 17.
In the process, blower fan can be according to institute's required airflow regulation rotating speed.
With reference to shown in Figure 2, according to the second embodiment of the present invention, when indoor set is in the first mode of operation, first
Indoor set 3 is in heating state, and the first interface of the reversal valve 5 of the first indoor set 3 first and the 3rd interface of the first reversal valve 5 connect
Logical, the second interface of the first reversal valve 5 and the 4th orifice of the first reversal valve 5, the second indoor set 4 are in shutdown or sent
Wind state, the first interface of the 4th reversal valve 19 connect with the second interface of the 4th reversal valve 19, and the 3rd of the 4th reversal valve 19 the
4th orifice of interface and the 4th reversal valve 19, the first interface of the 3rd reversal valve 2 and the second interface of the 3rd reversal valve 2
Connection, the 3rd interface of the 3rd reversal valve 2 and the 4th orifice of the 3rd reversal valve 2, the first expansion valve 7 are closed.
In the present embodiment, the first indoor set 3 forms heating with outdoor unit 1, and First Heat Exchanger 6 plays condensation,
3rd heat exchanger 13 plays evaporation, therefore the first expansion valve 7 is closed, and the 3rd expansion valve 14 is opened, and ensures multiple on-line system
Normal work.The operation principle of the multiple on-line system of the present embodiment is identical with first embodiment, and I will not elaborate.
With reference to shown in Figure 3, according to the third embodiment of the invention, when indoor set is in the first mode of operation, first
Indoor set 3 is in shutdown or ventilation state, and the second indoor set 4 is in refrigerating state, the first interface of the second reversal valve 9 and the
3rd orifice of two reversal valves 9, the second reversal valve 9 second interface and the second reversal valve 9 the 4th orifice, the
The first interface of four reversal valves 19 and the 3rd orifice of the 4th reversal valve 19, the second interface and the 4th of the 4th reversal valve 19
4th orifice of reversal valve 19, the first interface of the 3rd reversal valve 2 and the 3rd orifice of the 3rd reversal valve 2, the 3rd
The second interface of reversal valve 2 and the 4th orifice of the 3rd reversal valve 2, the 3rd expansion valve 14 are closed.
In the present embodiment, the second indoor set 4 and outdoor unit 1 form refrigeration system, the first indoor set 3 be in shutdown or
Ventilation state, now the second heat exchanger 10 play evaporation, the 3rd heat exchanger 13 plays condensation, therefore the 3rd expansion valve 14 closes
Close, the second expansion valve 11 is opened, so as to ensure the normal refrigeration work of multiple on-line system.The work of the multiple on-line system of the present embodiment
It is identical with first embodiment to make principle, I will not elaborate.
With reference to shown in Figure 4, according to the fourth embodiment of the invention, when indoor set is in the first mode of operation, first
Indoor set 3 is in shutdown or ventilation state, and the second indoor set 4 is in heating state, the first interface of the second reversal valve 9 and the
The second interface connection of two reversal valves 9, the 3rd interface of the second reversal valve 9 and the 4th orifice of the second reversal valve 9, the
The first interface of four reversal valves 19 connects with the second interface of the 4th reversal valve 19, the 3rd interface and the 4th of the 4th reversal valve 19
4th orifice of reversal valve 19, the first interface of the 3rd reversal valve 2 and the 3rd orifice of the 3rd reversal valve 2, the 3rd
The second interface of reversal valve 2 and the 4th orifice of the 3rd reversal valve 2, the second expansion valve 11 are closed.
In the present embodiment, the second indoor set 4 forms heating with outdoor unit 1, and the second heat exchanger 10 plays condensation,
3rd heat exchanger 13 plays evaporation, therefore the second expansion valve 11 is closed, and the 3rd expansion valve 14 is opened, and ensures multiple on-line system
Normal work.The operation principle of the multiple on-line system of the present embodiment is identical with first embodiment, and I will not elaborate.
With reference to shown in Figure 5, according to the fifth embodiment of the invention, when indoor set is in three mode of operations, first
The indoor set 4 of indoor set 3 and second is in refrigerating state, and the first interface of the first reversal valve 5 connects with the 3rd of the first reversal valve 5
Mouth connection, the second interface of the first reversal valve 5 and the 4th orifice of the first reversal valve 5, the first interface of the second reversal valve 9
With the 3rd orifice of the second reversal valve 9, the 4th interface of second interface and the second reversal valve 9 of the second reversal valve 9 connect
It is logical, the first interface of the 4th reversal valve 19 and the 3rd orifice of the 4th reversal valve 19, the second interface of the 4th reversal valve 19
With the 4th orifice of the 4th reversal valve 19, the first interface of the 3rd reversal valve 2 and the 3rd interface of the 3rd reversal valve 2 connect
Logical, the second interface of the 3rd reversal valve 2 and the 4th orifice of the 3rd reversal valve 2, the first expansion valve 7 are closed, the 3rd expansion
Valve 14 is closed.
In the present embodiment, the first indoor set 3 and the second indoor set 4 are in refrigerating state, and the 3rd heat exchanger 13 rises cold
Solidifying effect, the heat exchanger 10 of First Heat Exchanger 6 and second play evaporation, and refrigerant changes after First Heat Exchanger 6 into second
Continue to exchange heat in hot device 10, now the first expansion valve 7 and the 3rd expansion valve 14 are closed, it is ensured that refrigerant is swollen second
There is enough restriction effects at swollen valve 11, ensure heat transfer effect of the refrigerant in the second heat exchanger 10.
With reference to shown in Figure 6, according to the sixth embodiment of the invention, when indoor set is in the second mode of operation, first
The indoor set 4 of indoor set 3 and second is in heating state, and the first interface of the first reversal valve 5 connects with the second of the first reversal valve 5
Mouth connection, the 3rd interface of the first reversal valve 5 and the 4th orifice of the first reversal valve 5, the first interface of the second reversal valve 9
With the 3rd orifice of the second reversal valve 9, the 4th interface of second interface and the second reversal valve 9 of the second reversal valve 9 connect
Logical, the first interface of the 4th reversal valve 19 connects with the second interface of the 4th reversal valve 19, the 3rd interface of the 4th reversal valve 19
With the 4th orifice of the 4th reversal valve 19, the first interface of the 3rd reversal valve 2 and the 3rd interface of the 3rd reversal valve 2 connect
Logical, the second interface of the 3rd reversal valve 2 and the 4th orifice of the 3rd reversal valve 2, the first expansion valve 7 are closed, the second expansion
Valve 11 is closed.
In the present embodiment, the heat exchanger 10 of First Heat Exchanger 6 and second plays condensation, and the 3rd heat exchanger 13 plays
Evaporation, therefore the first expansion valve 7 and the second expansion valve 11 are closed, the 3rd expansion valve 14 is opened, and refrigerant is in the first heat exchange
After being condensed at the heat exchanger 10 of device 6 and second, throttled through the 3rd expansion valve 14, heat exchange evaporation carried out into the 3rd heat exchanger 13,
Ensure the normal work of multiple on-line system.
With reference to shown in Figure 7, according to the seventh embodiment of the invention, when indoor set is in the first mode of operation, first
Indoor set 3 is in refrigerating state, and the first interface of the first reversal valve 5 connects with the second interface of the first reversal valve 5, the first commutation
3rd interface of valve 5 and the 4th orifice of the first reversal valve 5, the second indoor set 4 are in heating state, the second reversal valve 9
First interface connected with the second interface of the second reversal valve 9, second reversal valve 9 the 3rd interface and the second reversal valve 9
4th orifice, the heat of the first indoor set 3 is suitable with the cold of the second indoor set 4, the first interface of the 4th reversal valve 19
With the 3rd orifice of the 4th reversal valve 19, the second interface of the 4th reversal valve 19 connects with the 4th interface of the 4th reversal valve 19
It is logical, the first interface of the 3rd reversal valve 2 and the 3rd orifice of the 3rd reversal valve 2, the second interface of the 3rd reversal valve 2 and the
4th orifice of three reversal valves 2, the second expansion valve 11 are closed, and the 3rd expansion valve 14 is closed, and the 3rd blower fan 22 is closed.
In the present embodiment, the first indoor set 3 is in refrigerating state, and First Heat Exchanger 6 plays evaporation, in second Room
Machine 4 is in heating state, and the second heat exchanger 10 plays condensation, and the 3rd heat exchanger 13 plays condensation, the 4th reversal valve
19 first interface is connected to the 3rd interface of the 4th reversal valve 19, and the second interface of the 4th reversal valve 19 is connected to the 4th commutation
4th interface of valve 19, first interface and threeth interface of the refrigerant through the 4th reversal valve 19, which enter in the 3rd heat exchanger 13, to be carried out
Heat exchange, because now the 3rd expansion valve 14 is closed, refrigerant flows to the first of the 3rd reversal valve 2 through the 3rd check valve 15 and connect
Mouthful, the 3rd interface then through the 3rd reversal valve 2 flows to the first interface of the second reversal valve 9, and the through the second reversal valve 9
Two interfaces are entered in the second heat exchanger 10 and exchanged heat, because now the second heat exchanger 10 plays condensation, therefore the second expansion
Valve 11 is without opening.
Refrigerant flows to the 4th of the first reversal valve 5 after the 3rd interface and the 4th interface of the second reversal valve 9 afterwards
Interface, enter after the 3rd interface of the first reversal valve 5 in the first expansion valve 7 and throttled, then into First Heat Exchanger 6
Heat exchange is evaporated, second interface and fourth interface of the refrigerant through the 3rd reversal valve 2 flow back into compressor 16 afterwards.
Because the second heat exchanger 10 needs to discharge enough heats in whole process, therefore the 3rd blower fan 22 can be closed,
To reduce the heat discharged at the 3rd heat exchanger 13, ensure that the second heat exchanger 10 provides enough heating effects.
With reference to shown in Figure 8, according to the eighth embodiment of the present invention, indoor set is in the first mode of operation and required heat
When amount is suitable with institute chilling requirement, the first indoor set 3 is in heating state, the first interface of the first reversal valve 5 and the first reversal valve 5
Second interface connection, the 3rd interface of the first reversal valve 5 and the 4th orifice of the first reversal valve 5, at the second indoor set 4
In refrigerating state, the first interface of the second reversal valve 9 connects with the second interface of the second reversal valve 9, the second reversal valve 9
4th orifice of three interfaces and the second reversal valve 9, the first interface of the 4th reversal valve 19 and the 3rd of the 4th reversal valve 19 the
Orifice, the second interface of the 4th reversal valve 19 and the 4th orifice of the 4th reversal valve 19, the first of the 3rd reversal valve 2
3rd orifice of interface and the 3rd reversal valve 2, the second interface of the 3rd reversal valve 2 and the 4th interface of the 3rd reversal valve 2
Connection, the first expansion valve 7 are closed, and the 3rd expansion valve 14 is closed, and the 3rd blower fan 22 is closed.
In the present embodiment, the heat exchanger 13 of First Heat Exchanger 6 and the 3rd plays condensation, and the second heat exchanger 10 plays
Evaporation, refrigerant flow to the second heat exchanger 10 after the 3rd heat exchanger 13 and First Heat Exchanger 6 and exchanged heat,
Therefore the first expansion valve 7 and the 3rd expansion valve 14 are closed, so as to ensure that First Heat Exchanger 6 has a preferable heating effect, second
Heat exchanger 10 has preferable refrigeration.Further, since institute's calorific requirement is equal to institute's chilling requirement, therefore only need to ensure that first changes
The heat exchange amount of the hot heat exchanger 10 of device 6 and second is essentially identical, namely need not be exchanged heat at the 3rd heat exchanger 13, because
This can close the 3rd blower fan 22, to save the energy.
With reference to shown in Figure 9, according to the ninth embodiment of the present invention, indoor set is in the first mode of operation and required heat
Amount is when being less than institute's chilling requirement, and the first indoor set 3 is in heating state, the first interface of the first reversal valve 5 and the first reversal valve 5
Second interface is connected, and the 3rd interface of the first reversal valve 5 and the 4th orifice of the first reversal valve 5, the second indoor set 4 are in
Refrigerating state, the first interface of the second reversal valve 9 connect with the second interface of the second reversal valve 9, the second reversal valve 9 the 3rd
4th orifice of interface and the second reversal valve 9, the first interface of the 4th reversal valve 19 connect with the 3rd of the 4th reversal valve 19
Mouth connection, the second interface of the 4th reversal valve 19 and the 4th orifice of the 4th reversal valve 19, the first of the 3rd reversal valve 2 connects
Mouth connects with the second interface of the 3rd reversal valve 2, and the 3rd interface of the 3rd reversal valve 2 and the 4th interface of the 3rd reversal valve 2 connect
Logical, the first expansion valve 7 is closed, and the 3rd expansion valve 14 is closed.
In the present embodiment, the heat exchanger 13 of First Heat Exchanger 6 and the 3rd plays condensation, and the second heat exchanger 10 plays
Evaporation, refrigerant flow to the second heat exchanger 10 after the 3rd heat exchanger 13 and First Heat Exchanger 6 and exchanged heat,
Therefore the first expansion valve 7 and the 3rd expansion valve 14 are closed, so as to ensure that First Heat Exchanger 6 has a preferable heating effect, second
Heat exchanger 10 has preferable refrigeration.Further, since institute's calorific requirement is less than institute's chilling requirement, therefore the 3rd blower fan can be improved
22 air quantity, to increase the heat exchange amount of the 3rd heat exchanger 13 so that the heat of the release of the heat exchanger 13 of First Heat Exchanger 6 and the 3rd
The refrigerating capacity needs of the second heat exchanger 10 can be met, so as to ensure that the second heat exchanger 10 has enough refrigerating capacitys.
With reference to shown in Figure 10, according to the tenth embodiment of the present invention, indoor set is in the first mode of operation and required
When heat is less than institute's chilling requirement, the first indoor set 3 is in refrigerating state, the first interface of the first reversal valve 5 and the first reversal valve 5
Second interface connection, the 3rd interface of the first reversal valve 5 and the 4th orifice of the first reversal valve 5, at the second indoor set 4
In heating state, the first interface of the second reversal valve 9 connects with the second interface of the second reversal valve 9, the second reversal valve 9 the
4th orifice of three interfaces and the second reversal valve 9, the first interface of the 4th reversal valve 19 and the 3rd of the 4th reversal valve 19 the
Orifice, the second interface of the 4th reversal valve 19 and the 4th orifice of the 4th reversal valve 19, the first of the 3rd reversal valve 2
3rd orifice of interface and the 3rd reversal valve 2, the second interface of the 3rd reversal valve 2 and the 4th interface of the 3rd reversal valve 2
Connection, the second expansion valve 11 are closed, and the 3rd expansion valve 14 is closed.
In the present embodiment, in the present embodiment, the second heat exchanger 10 and the 3rd heat exchanger 13 play condensation, the
One heat exchanger 6 plays evaporation, and refrigerant is to flow to the first heat exchange after the 3rd heat exchanger 13 and the second heat exchanger 10
What device 6 was exchanged heat, therefore the second expansion valve 11 and the 3rd expansion valve 14 are closed, so as to ensure that it is preferable that the second heat exchanger 10 has
Heating effect, First Heat Exchanger 6 has preferable refrigeration.Further, since institute's calorific requirement is less than institute's chilling requirement, therefore can
To improve the air quantity of the 3rd blower fan 22, to increase the heat exchange amount of the 3rd heat exchanger 13 so that the heat exchanger of First Heat Exchanger 6 and the 3rd
The heat of 13 release can meet the refrigerating capacity needs of First Heat Exchanger 6, so as to ensure that First Heat Exchanger 6 has enough systems
Cold, and reduce the energy charge of the second heat exchanger 10.
With reference to shown in Figure 11, according to the 11st embodiment of the present invention, indoor set is in the first mode of operation and institute
When calorific requirement is more than institute's chilling requirement, the first indoor set 3 is in heating state, the first interface of the first reversal valve 5 and the first commutation
The second interface connection of valve 5, the 3rd interface of the first reversal valve 5 and the 4th orifice of the first reversal valve 5, the second indoor set
4 are in refrigerating state, and the first interface of the second reversal valve 9 connects with the second interface of the second reversal valve 9, the second reversal valve 9
The 3rd interface and the second reversal valve 9 the 4th orifice, the first interface of the 4th reversal valve 19 and the 4th reversal valve 19
Second interface connects, the 3rd interface of the 4th reversal valve 19 and the 4th orifice of the 4th reversal valve 19, the 3rd reversal valve 2
3rd orifice of first interface and the 3rd reversal valve 2, the second interface of the 3rd reversal valve 2 and the 4th of the 3rd reversal valve 2 the
Orifice, the first expansion valve 7 are closed.
In the present embodiment, First Heat Exchanger 6 plays condensation, and the second heat exchanger 10 and the 3rd heat exchanger 13 play steaming
Breaking-out is used, and refrigerant flow to the second heat exchanger 10 afterwards through First Heat Exchanger 6 and the 3rd heat exchanger 13 is exchanged heat, because
This first expansion valve 7 is closed, and so as to ensure that First Heat Exchanger 6 has preferable heating effect, the second heat exchanger 10 has preferable
Refrigeration.Further, since institute's calorific requirement is more than institute's chilling requirement, therefore the 3rd heat exchanger 13 is arranged on the second heat exchanger 10
Afterwards, and by the 3rd expansion valve 14 evaporation effect of the 3rd heat exchanger 13 is improved, after causing First Heat Exchanger 6 to discharge heat
The refrigerant of condensation can be absorbed to enough heats at the second heat exchanger 10 and the 3rd heat exchanger 13, ensure multiple on-line system
Normal operation.
With reference to shown in Figure 12, according to the 12nd embodiment of the present invention, indoor set is in the first mode of operation and institute
When calorific requirement is more than institute's chilling requirement, the first indoor set 3 is in refrigerating state, the first interface of the first reversal valve 5 and the first commutation
The second interface connection of valve 5, the 3rd interface of the first reversal valve 5 and the 4th orifice of the first reversal valve 5, the second indoor set
4 are in heating state, and the first interface of the second reversal valve 9 connects with the second interface of the second reversal valve 9, the second reversal valve 9
The 3rd interface and the second reversal valve 9 the 4th orifice, the first interface of the 4th reversal valve 19 and the 4th reversal valve 19
Second interface connects, the 3rd interface of the 4th reversal valve 19 and the 4th orifice of the 4th reversal valve 19, the 3rd reversal valve 2
First interface connects with the second interface of the 3rd reversal valve 2, the 3rd interface of the 3rd reversal valve 2 and the 4th of the 3rd reversal valve 2 the
Orifice, the second expansion valve 11 are closed.
In the present embodiment, the second heat exchanger 10 plays condensation, and the heat exchanger 13 of First Heat Exchanger 6 and the 3rd plays steaming
Breaking-out is used, and refrigerant flow to the heat exchanger 13 of First Heat Exchanger 6 and the 3rd after the second heat exchanger 10 and exchanged heat, because
This second expansion valve 11 is closed, and so as to ensure that the second heat exchanger 10 has preferable heating effect, First Heat Exchanger 6 has preferable
Refrigeration.Further, since institute's calorific requirement is more than institute's chilling requirement, therefore the 3rd heat exchanger 13 is arranged on First Heat Exchanger 6
Afterwards, and by the 3rd expansion valve 14 evaporation effect of the 3rd heat exchanger 13 is improved, to cause the second heat exchanger 10 to discharge heat
The refrigerant condensed afterwards can fully exchange heat at the heat exchanger 13 of First Heat Exchanger 6 and the 3rd, be absorbed to enough heats, ensure
The normal operation of multiple on-line system.
Above-mentioned the first reversal valve 5, the second reversal valve 9, the 3rd reversal valve 2 and the 4th reversal valve 19 is, for example, four-way commutation
Valve.
Stop valve can be set on connecting line between the first indoor set 3 and the 3rd reversal valve 2, in the second indoor set
4 and the 3rd connecting line between reversal valve 2 on stop valve can be set, consequently facilitating in the first indoor set 3 and second Room
Machine 4 is repaired.
Certainly, above is the preferred embodiment of the present invention.It should be pointed out that for those skilled in the art
For, on the premise of its general principles are not departed from, some improvements and modifications can also be made, these improvements and modifications
It is considered as protection scope of the present invention.
Claims (16)
- A kind of 1. multiple on-line system, it is characterised in that including an outdoor unit (1) and it is multiple with the outdoor unit (1) by the The indoor set of three reversal valves (2) connection, the mutual independent control of working condition of each indoor set, the multiple on-line system have At least two indoor sets are in the first mode of operation of different working condition, the indoor set while are in the second of heating state Mode of operation and the indoor set are in the 3rd mode of operation of refrigerating state simultaneously；The indoor set includes the first indoor set (3) and the second indoor set (4),It is unidirectional that first indoor set (3) includes the first reversal valve (5), First Heat Exchanger (6), the first expansion valve (7) and first Valve (8), the first interface of first reversal valve (5) are connected to the second interface of the 3rd reversal valve (2), and described first changes The First Heat Exchanger (6) is connected to the second interface of valve (5), the 3rd interface of first reversal valve (5) is connected to institute The first expansion valve (7) is stated, first check valve (8) is in parallel with first expansion valve (7), the first check valve (8) edge The direction one-way conduction of the First Heat Exchanger (6) extremely the 3rd interface of first reversal valve (5)；It is single that second indoor set (4) includes the second reversal valve (9), the second heat exchanger (10), the second expansion valve (11) and second To valve (12), the first interface of second reversal valve (9) is connected to the 3rd interface of the 3rd reversal valve (2), and described The second interface of two reversal valves (9) is connected to second heat exchanger (10), the 3rd interface connection of second reversal valve (9) To second expansion valve (11), second check valve (12) is in parallel with second expansion valve (11), and described second is unidirectional The direction one-way conduction of threeth interface of the valve (12) along second heat exchanger (10) to second reversal valve (9), described the 4th interface of two reversal valves (9) is connected to the 4th interface of first reversal valve (5).
- 2. multiple on-line system according to claim 1, it is characterised in that the outdoor unit (1) includes the 3rd heat exchanger (13), the 3rd expansion valve (14) and the 3rd check valve (15), the 3rd expansion valve (14) are arranged on the 3rd heat exchanger (13) between the first interface of the 3rd reversal valve (2), the 3rd check valve (15) and the 3rd expansion valve (14) Parallel connection, the side of first interface of the 3rd check valve (15) along the 3rd heat exchanger (13) to the 3rd reversal valve (2) To one-way conduction.
- 3. multiple on-line system according to claim 2, it is characterised in that the outdoor unit (1) also include compressor (16), Gas-liquid separator (17), fluid reservoir (18) and the 4th reversal valve (19), the first interface of the 4th reversal valve (19) and compression The outlet connection of machine (16), the second interface of the 4th reversal valve (19) connect with the 4th interface of the 3rd reversal valve (2) Connect, the 3rd interface of the 4th reversal valve (19) is connected with the 3rd heat exchanger (13), the 4th reversal valve (19) 4th interface is connected with the fluid reservoir (18).
- 4. multiple on-line system according to claim 3, it is characterised in that the multiple on-line system also includes corresponding described the The second blower fan (21) that the first blower fan (20) that one heat exchanger (6) is set, corresponding second heat exchanger (10) are set and correspondingly The 3rd blower fan (22) that 3rd heat exchanger (13) is set.
- 5. multiple on-line system according to claim 3, it is characterised in that the multiple on-line system is in the first mode of operation When, first indoor set (3) is in refrigerating state, first interface and first reversal valve of first reversal valve (5) (5) the 3rd orifice, the second interface of first reversal valve (5) and the 4th interface of first reversal valve (5) connect Logical, second indoor set (4) is in shutdown or ventilation state, the first interface of the 4th reversal valve (19) and described the 3rd orifice of four reversal valves (19), second interface and the 4th reversal valve (19) of the 4th reversal valve (19) 4th orifice, the first interface of the 3rd reversal valve (2) connect with the second interface of the 3rd reversal valve (2), institute State the 3rd interface of the 3rd reversal valve (2) and the 4th orifice of the 3rd reversal valve (2), the 3rd expansion valve (14) Close.
- 6. multiple on-line system according to claim 3, it is characterised in that when the indoor set is in the first mode of operation, First indoor set (3) is in heating state, the first interface of first reversal valve (5) and first reversal valve (5) The 3rd orifice, the 4th orifice of the second interface of first reversal valve (5) and first reversal valve (5), Second indoor set (4) is in shutdown or ventilation state, the first interface and the described 4th of the 4th reversal valve (19) The second interface connection of reversal valve (19), the of the 3rd interface of the 4th reversal valve (19) and the 4th reversal valve (19) Four orifices, the first interface of the 3rd reversal valve (2) connects with the second interface of the 3rd reversal valve (2), described 3rd interface of the 3rd reversal valve (2) and the 4th orifice of the 3rd reversal valve (2), first expansion valve (7) are closed Close.
- 7. multiple on-line system according to claim 3, it is characterised in that when the indoor set is in the first mode of operation, First indoor set (3) is in shutdown or ventilation state, and second indoor set (4) is in refrigerating state, and described second 3rd orifice of the first interface of reversal valve (9) and second reversal valve (9), the of described the second reversal valve (9) 4th orifice of two interfaces and second reversal valve (9), the first interface of the 4th reversal valve (19) and described the 3rd orifice of four reversal valves (19), second interface and the 4th reversal valve (19) of the 4th reversal valve (19) 4th orifice, the first interface of the 3rd reversal valve (2) and the 3rd orifice of the 3rd reversal valve (2), institute State the second interface of the 3rd reversal valve (2) and the 4th orifice of the 3rd reversal valve (2), the 3rd expansion valve (14) Close.
- 8. multiple on-line system according to claim 3, it is characterised in that when the indoor set is in the first mode of operation, First indoor set (3) is in shutdown or ventilation state, and second indoor set (4) is in heating state, and described second 3rd orifice of the first interface of reversal valve (9) and second reversal valve (9), the of described the second reversal valve (9) 4th orifice of two interfaces and second reversal valve (9), the first interface of the 4th reversal valve (19) and described the The second interface connection of four reversal valves (19), the 3rd interface and the 4th reversal valve (19) of the 4th reversal valve (19) 4th orifice, the first interface of the 3rd reversal valve (2) and the 3rd orifice of the 3rd reversal valve (2), institute State the second interface of the 3rd reversal valve (2) and the 4th orifice of the 3rd reversal valve (2), second expansion valve (11) Close.
- 9. multiple on-line system according to claim 3, it is characterised in that when the indoor set is in three mode of operations, First indoor set (3) and second indoor set (4) are in refrigerating state, and the first of first reversal valve (5) connects Mouth and the 3rd orifice of first reversal valve (5), the second interface of first reversal valve (5) and the described first commutation 4th orifice of valve (5), the first interface of second reversal valve (9) and the 3rd interface of second reversal valve (9) Connection, the second interface of described the second reversal valve (9) and the 4th orifice of second reversal valve (9), the described 4th 3rd orifice of the first interface of reversal valve (19) and the 4th reversal valve (19), the of the 4th reversal valve (19) 4th orifice of two interfaces and the 4th reversal valve (19), the first interface of the 3rd reversal valve (2) and described the 3rd orifice of three reversal valves (2), the of the second interface of the 3rd reversal valve (2) and the 3rd reversal valve (2) Four orifices, first expansion valve (7) are closed, and the 3rd expansion valve (14) is closed.
- 10. multiple on-line system according to claim 3, it is characterised in that when the indoor set is in the second mode of operation, First indoor set (3) and second indoor set (4) are in heating state, and the first of first reversal valve (5) connects Mouth connects with the second interface of first reversal valve (5), the 3rd interface of first reversal valve (5) and the described first commutation 4th orifice of valve (5), the first interface of second reversal valve (9) and the 3rd interface of second reversal valve (9) Connection, the second interface of described the second reversal valve (9) and the 4th orifice of second reversal valve (9), the described 4th The first interface of reversal valve (19) connects with the second interface of the 4th reversal valve (19), and the of the 4th reversal valve (19) 4th orifice of three interfaces and the 4th reversal valve (19), the first interface of the 3rd reversal valve (2) and described the 3rd orifice of three reversal valves (2), the of the second interface of the 3rd reversal valve (2) and the 3rd reversal valve (2) Four orifices, first expansion valve (7) are closed, and second expansion valve (11) is closed.
- 11. multiple on-line system according to claim 4, it is characterised in that when the indoor set is in the first mode of operation, First indoor set (3) is in refrigerating state, the first interface of first reversal valve (5) and first reversal valve (5) Second interface connection, the 3rd interface of first reversal valve (5) and the 4th orifice of first reversal valve (5), Second indoor set (4) is in heating state, the first interface of second reversal valve (9) and second reversal valve (9) Second interface connection, the 3rd interface of described the second reversal valve (9) and the 4th interface of second reversal valve (9) connect Logical, the heat of first indoor set (3) is suitable with the cold of second indoor set (4), the 4th reversal valve (19) 3rd orifice of first interface and the 4th reversal valve (19), the second interface of the 4th reversal valve (19) with it is described 4th orifice of the 4th reversal valve (19), first interface and the 3rd reversal valve (2) of the 3rd reversal valve (2) 3rd orifice, the second interface of the 3rd reversal valve (2) and the 4th orifice of the 3rd reversal valve (2), institute The second expansion valve (11) closing is stated, the 3rd expansion valve (14) is closed, and the 3rd blower fan (22) is closed.
- 12. multiple on-line system according to claim 4, it is characterised in that the indoor set be in the first mode of operation and When institute's calorific requirement is suitable with institute chilling requirement, first indoor set (3) is in heating state, and the of first reversal valve (5) One interface connects with the second interface of first reversal valve (5), the 3rd interface and described first of first reversal valve (5) 4th orifice of reversal valve (5), second indoor set (4) are in refrigerating state, and the first of second reversal valve (9) Interface connects with the second interface of second reversal valve (9), the 3rd interface and described second of described the second reversal valve (9) 4th orifice of reversal valve (9), the of the first interface of the 4th reversal valve (19) and the 4th reversal valve (19) Three orifices, the second interface of the 4th reversal valve (19) and the 4th orifice of the 4th reversal valve (19), institute The first interface for stating the 3rd reversal valve (2) connects with the second interface of the 3rd reversal valve (2), the 3rd reversal valve (2) The 3rd interface and the 3rd reversal valve (2) the 4th orifice, first expansion valve (7) closes, and the described 3rd is swollen Swollen valve (14) is closed, and the 3rd blower fan (22) is closed.
- 13. multiple on-line system according to claim 3, it is characterised in that the indoor set be in the first mode of operation and When institute's calorific requirement is less than institute's chilling requirement, first indoor set (3) is in heating state, and the first of first reversal valve (5) Interface connects with the second interface of first reversal valve (5), and the 3rd interface of first reversal valve (5) changes with described first To the 4th orifice of valve (5), second indoor set (4) is in refrigerating state, and the first of second reversal valve (9) connects Mouth connects with the second interface of second reversal valve (9), and the 3rd interface of described the second reversal valve (9) changes with described second To the 4th orifice of valve (9), the first interface of the 4th reversal valve (19) and the 3rd of the 4th reversal valve (19) the Orifice, the second interface of the 4th reversal valve (19) and the 4th orifice of the 4th reversal valve (19), it is described The first interface of 3rd reversal valve (2) connects with the second interface of the 3rd reversal valve (2), the 3rd reversal valve (2) 3rd interface and the 4th orifice of the 3rd reversal valve (2), first expansion valve (7) are closed, the 3rd expansion Valve (14) is closed.
- 14. multiple on-line system according to claim 3, it is characterised in that the indoor set be in the first mode of operation and When institute's calorific requirement is less than institute's chilling requirement, first indoor set (3) is in refrigerating state, and the first of first reversal valve (5) Interface connects with the second interface of first reversal valve (5), and the 3rd interface of first reversal valve (5) changes with described first To the 4th orifice of valve (5), second indoor set (4) is in heating state, and the first of second reversal valve (9) connects Mouth connects with the second interface of second reversal valve (9), and the 3rd interface of described the second reversal valve (9) changes with described second To the 4th orifice of valve (9), the first interface of the 4th reversal valve (19) and the 3rd of the 4th reversal valve (19) the Orifice, the second interface of the 4th reversal valve (19) and the 4th orifice of the 4th reversal valve (19), it is described The first interface of 3rd reversal valve (2) and the 3rd orifice of the 3rd reversal valve (2), the 3rd reversal valve (2) Second interface and the 4th orifice of the 3rd reversal valve (2), second expansion valve (11) are closed, the 3rd expansion Valve (14) is closed.
- 15. multiple on-line system according to claim 3, it is characterised in that the indoor set be in the first mode of operation and When institute's calorific requirement is more than institute's chilling requirement, first indoor set (3) is in heating state, and the first of first reversal valve (5) Interface connects with the second interface of first reversal valve (5), and the 3rd interface of first reversal valve (5) changes with described first To the 4th orifice of valve (5), second indoor set (4) is in refrigerating state, and the first of second reversal valve (9) connects Mouth connects with the second interface of second reversal valve (9), and the 3rd interface of described the second reversal valve (9) changes with described second To the 4th orifice of valve (9), the first interface of the 4th reversal valve (19) and the second of the 4th reversal valve (19) Orifice, the 3rd interface of the 4th reversal valve (19) and the 4th orifice of the 4th reversal valve (19), it is described The first interface of 3rd reversal valve (2) and the 3rd orifice of the 3rd reversal valve (2), the 3rd reversal valve (2) Second interface and the 4th orifice of the 3rd reversal valve (2), first expansion valve (7) are closed.
- 16. multiple on-line system according to claim 3, it is characterised in that the indoor set be in the first mode of operation and When institute's calorific requirement is more than institute's chilling requirement, first indoor set (3) is in refrigerating state, and the first of first reversal valve (5) Interface connects with the second interface of first reversal valve (5), and the 3rd interface of first reversal valve (5) changes with described first To the 4th orifice of valve (5), second indoor set (4) is in heating state, and the first of second reversal valve (9) connects Mouth connects with the second interface of second reversal valve (9), and the 3rd interface of described the second reversal valve (9) changes with described second To the 4th orifice of valve (9), the first interface of the 4th reversal valve (19) and the second of the 4th reversal valve (19) Orifice, the 3rd interface of the 4th reversal valve (19) and the 4th orifice of the 4th reversal valve (19), it is described The first interface of 3rd reversal valve (2) connects with the second interface of the 3rd reversal valve (2), the 3rd reversal valve (2) 3rd interface and the 4th orifice of the 3rd reversal valve (2), second expansion valve (11) are closed.
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| CN201510359697.6A CN104990304B (en) | 2015-06-25 | 2015-06-25 | Multi-split system |
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| CN201510359697.6A CN104990304B (en) | 2015-06-25 | 2015-06-25 | Multi-split system |
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| CN104990304B true CN104990304B (en) | 2017-12-26 |
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| CN105737334B (en) * | 2016-02-22 | 2018-11-20 | 广东美的暖通设备有限公司 | Multi-line system and its mode switch control method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5063752A (en) * | 1989-10-06 | 1991-11-12 | Mitsubishi Denki Kabushiki Kaisha | Air conditioning apparatus |
| CN1796896A (en) * | 2004-12-29 | 2006-07-05 | 董永刚 | Multifunctional cooling / warming conditionner and hot water device |
| CN1987298A (en) * | 2005-12-22 | 2007-06-27 | 乐金电子(天津)电器有限公司 | Composite air conditioner system and its operation method |
| CN201007582Y (en) * | 2007-02-13 | 2008-01-16 | 珠海格力电器股份有限公司 | Air conditioning unit capable of refrigerating and heating simultaneously |
| CN103411268A (en) * | 2013-07-22 | 2013-11-27 | Tcl空调器(中山)有限公司 | Refrigeration system and refrigeration method thereof |
| CN203964435U (en) * | 2014-05-27 | 2014-11-26 | Tcl空调器(中山)有限公司 | Air Conditioning System with Heat |
| CN204923558U (en) * | 2015-06-25 | 2015-12-30 | 珠海格力电器股份有限公司 | Multi-split system |
-
2015
- 2015-06-25 CN CN201510359697.6A patent/CN104990304B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5063752A (en) * | 1989-10-06 | 1991-11-12 | Mitsubishi Denki Kabushiki Kaisha | Air conditioning apparatus |
| CN1796896A (en) * | 2004-12-29 | 2006-07-05 | 董永刚 | Multifunctional cooling / warming conditionner and hot water device |
| CN1987298A (en) * | 2005-12-22 | 2007-06-27 | 乐金电子(天津)电器有限公司 | Composite air conditioner system and its operation method |
| CN201007582Y (en) * | 2007-02-13 | 2008-01-16 | 珠海格力电器股份有限公司 | Air conditioning unit capable of refrigerating and heating simultaneously |
| CN103411268A (en) * | 2013-07-22 | 2013-11-27 | Tcl空调器(中山)有限公司 | Refrigeration system and refrigeration method thereof |
| CN203964435U (en) * | 2014-05-27 | 2014-11-26 | Tcl空调器(中山)有限公司 | Air Conditioning System with Heat |
| CN204923558U (en) * | 2015-06-25 | 2015-12-30 | 珠海格力电器股份有限公司 | Multi-split system |
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